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--- introduction_to_the_internet_of_things [2018/08/01 04:35] – sdh7
+++ introduction_to_the_internet_of_things [2018/08/22 15:09] (current) – sdh7
@@ Line 25: / Line 25: @@
     * On Windows & Linux the files will be somewhere similar - you can find your base directory via Preferences, and from there get to the libraries folder
   * edit Adafruit_BME280.h using your favorite editor, and change #define BME280_ADDRESS from 0x77 to 0x76- it should be around line 34 or so.
+  * I originally had some stuff about modifying the library further, but it didn't work. Just do this, and remember to change it back if you ever get an official Adafruit BME280 breakout board.
 ===If Using Your Phone to Tether===
@@ Line 39: / Line 40: @@
 ==Hardware Construction==
+  * First things first- TEST THE VOLTAGE REGULATOR BOARD. Unfortunately, these boards are capable of failing short (i.e. the input voltage can end up at the output, which will fry your ESP8266!!). Hook up your power source to the Vin of the regulator board. Using a voltmeter, check the voltage at Vout. It should be about 3.3V, give or take .1 V. If it is more than this, get another board and throw this one away!
   * On the programming board, wire an SPST or SPDT switch between GPIO and GND
   * If you plan on re-using the boards for something else in the future, solder in header pins on the other boards. If you're building this as a fixed-in-place design, you'll want to just solder wires to the boards. Theoretically, the person that designed this de-solders the pins from the ESP8266 board, but that seems foolhardy to me (makes it MUCH more difficult to reprogram...)